skip test case with fork when running on windows

Author: Li Lin

Gemfile.lock

@@ -37,6 +37,7 @@ GEM
     docile (1.1.5)
     domain_name (0.5.20160310)
       unf (>= 0.0.5, < 1.0.0)
+    ffi (1.9.10-x86-mingw32)
     hashdiff (0.3.0)
     http-cookie (1.0.2)
       domain_name (~> 0.5)
@@ -68,6 +69,11 @@ GEM
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 3.0)
       netrc (~> 0.7)
+    rest-client (1.8.0-x86-mingw32)
+      ffi (~> 1.9)
+      http-cookie (>= 1.0.2, < 2.0)
+      mime-types (>= 1.16, < 3.0)
+      netrc (~> 0.7)
     rubocop (0.39.0)
       parser (>= 2.3.0.7, < 3.0)
       powerpack (~> 0.1)
@@ -95,6 +101,7 @@ GEM
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.2)
+    unf_ext (0.0.7.2-x86-mingw32)
     unicode-display_width (1.0.3)
     vcr (3.0.1)
     webmock (1.24.5)
@@ -125,6 +132,3 @@ DEPENDENCIES
   vcr (~> 3.0)
   webmock
   yard (~> 0.8)
-
-BUNDLED WITH
-   1.12.1

test/test_shared_access_token.rb

@@ -12,6 +12,7 @@ def setup
   end
 
   def test_child_processes_share_the_same_token
+    skip "Fork does not work on Windows" if Gem.win_platform?
     VCR.use_cassette('test_access_token_04') do
       parent_token = app_client.access_token
       (1..5).each do